public class Exception extends Throwable
Exception
and its subclasses are a form of Throwable
that indicates
conditions that a reasonable application might want to catch.
The class Exception
and any subclasses that are not also subclasses of
RuntimeException
are checked exceptions. Checked exceptions need to be declared
in a method or constructor's throws
clause if they can be thrown by the execution of the
method or constructor and propagate outside the method or constructor boundary.
Constructor and Description |
---|
Exception()
Constructs a new exception with
null as its detail message. |
Exception(String message)
Constructs a new exception with the specified detail message.
|
Exception(String message,
Throwable cause)
Constructs a new exception with the specified detail message and cause.
|
Exception(Throwable cause)
Constructs a new exception with the specified cause and a detail message of
(cause==null ? null : cause.toString()) (which typically contains the class and detail
message of cause ). |
addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, toString
public Exception()
null
as its detail message. The cause is not initialized,
and may subsequently be initialized by a call to Throwable.initCause(java.lang.Throwable)
.public Exception(String message)
Throwable.initCause(java.lang.Throwable)
.message
- the detail message. The detail message is saved for later retrieval by the
Throwable.getMessage()
method.public Exception(String message, @Nullable Throwable cause)
Note that the detail message associated with cause
is not automatically
incorporated in this exception's detail message.
message
- the detail message (which is saved for later retrieval by the Throwable.getMessage()
method).cause
- the cause (which is saved for later retrieval by the Throwable.getCause()
method). (A
null
value is permitted, and indicates that the cause is nonexistent or unknown.)public Exception(@Nullable Throwable cause)
(cause==null ? null : cause.toString())
(which typically contains the class and detail
message of cause
). This constructor is useful for exceptions that are little more than
wrappers for other throwables.cause
- the cause (which is saved for later retrieval by the Throwable.getCause()
method). (A
null
value is permitted, and indicates that the cause is nonexistent or unknown.)